Merge pull request #86 from kuroneko6423/patch-2

Update index.html

Author: mesacarlos

client/index.html

@@ -56,6 +56,7 @@
 								<a class="dropdown-item" href="#" onclick="setLanguage('pt_BR')">Português</a>
 								<a class="dropdown-item" href="#" onclick="setLanguage('ru_RU')">русский</a>
 								<a class="dropdown-item" href="#" onclick="setLanguage('tr_TR')">Türk</a>
+								<a class="dropdown-item" href="#" onclick="setLanguage('ja_JA')">日本語</a>
 							</div>
 						</li>
 						<li class="nav-item">